Table 2.
Average duration of each behaviour shown by the 13 immature green turtles’ predicted time versus actual time. The percentages are expressed with respect to the total individual recorded video duration or to the time the behaviour in question was expressed. The predicted durations of the diving behaviours were obtained using the WS method, and the surfacing behaviours were predicted using depth values.
behaviour | predicted (s) | observed (s) | difference (s) | %_total | %_behaviour |
---|---|---|---|---|---|
breathing | 99 | 94 | 32a | 0.2a | 46.9 |
feeding | 432 | 497 | 207 | 1,1 | 180.1 |
gliding | 936 | 651 | 326 | 1.0 | 39.1 |
other | 92 | 235 | 143 | 0.8 | 60.2 |
resting | 9175 | 9640 | 747b | 2.7b | 6.6 |
scratching | 437 | 354 | 118 | 0.7 | 311.8b |
staying at the surface | 1435 | 1477 | 151 | 0.8 | 10.8 |
swimming | 6206 | 6256 | 441 | 2.4 | 6.9a |
transition | 48 | — | 48 | 0.2a | — |
aThe lowest difference obtained among the nine behavioural categories.
bThe highest difference obtained among the nine behavioural categories.